Sure. Well consider this: my understanding of how people almost drown is that a shroud or line gets wrapped around the hook so they can't surface. With the ball-and-keyhole if the line gets wrapped around the wire holding the ball... who cares?
Also, I know some people climb out of the water onto the hull butt-first in sort of a reverse-scooting motion, but my wife and I throw our arms over the hull and pull our bellies up onto it and then put a knee up and then climb onto the tramp.
If you're the reverse-butt-scooting type then what kind of harness you have won't matter, but if you crawl on like we do then you'll have to be very careful if you have a hook. And I know I tend to go for speed rather than care when I'm getting out of cold water.
Good luck, broly.